Interface ShadedRelief

The ShadedRelief element selects the application of relief shading (or “hill shading”) to
an image for a three-dimensional visual effect.
Exact parameters of the shading are system-dependent (for now). If the BrightnessOnly
flag is “0” or “false” (false, default), the shading is applied to the layer being rendered as
the current RasterSymbolizer. If BrightnessOnly is “1” or “true” (true), the shading is
applied to the brightness of the colors in the rendering canvas generated so far by other
layers, with the effect of relief-shading these other layers. The default for
BrightnessOnly is “0” (false). The ReliefFactor gives the amount of exaggeration to use
for the height of the “hills.” A value of around 55 (times) gives reasonable results for
Earth-based DEMs. The default value is system-dependent.

getReliefFactor

The ReliefFactor gives the amount of exaggeration to use for the height
of the ?hills.? A value of around 55 (times) gives reasonable results
for Earth-based DEMs. The default value is system-dependent.